Gearing.



PATENTED OCT. 27, 190 3.

' A. WINTON.

GEARIN G.

No'. 742,812. PATENTED OCT. 27, 1903.

A. WINTON. GEARING.

APPLICATION FILED JUNE 13,-1902.

H0 MODEL, 2 SHEETS-SHEET'2.

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"m: mums virus :0. PNOTO-L'TNO" wummwu. n. c v 1 UNiTEn STATES PatentedOctober 27, 1903.

ALEXANDER WINTON, OF CLEVELAND, OHIO.

GEARING.

SPECIFICATION forming part of Letters Patent No. 742,812, dated October27, 1903.

Applioationfilecl-Tune13,1902 Seria1No.111,567. (No model.)

To all whom it may concern.-

Be it known that I, ALEXANDER WINTON, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented new and useful Improvements in Gearing, of which the followingis a specification.

My invention relates to improvements in gears; and it pertains to a gearwhich is espe- IO cially adapted and intended for use in connection withautomobiles for the purpose of throwing the driving mechanism in and outof gear, changing speed, and for reversing purposes, though it may beused in other con- :5 nections in which the same or similar functions oroperations are desirable.

The object of my invention is to so construct a gear that it willsmoothly engage a coacting gear for throwing in operation the mechanismor for changing the speed or for reversing, which operation necessitatesthe throwing in and out of meshcoacting gears. In the accompanyingdrawings,'Figure lis a perspective view of my improved gear. Fig. 2 5 2is a top or edge view of two gears, showing them in the act of beingthrown into gear or mesh. Fig. 3 1s a transverse sectional view of twoof my improved gears, showing them in the act of being moved into meshwith each other. Fig. l is a plan view of a throw in and out gearmechanism, a reverse, and a changing gear mechanism for the purpose ofillustrating the utility and operation of my invention when applied toautomobiles and in similar situations.

Referring now to the drawings, 1 indicates a suitable frame, in whichthe gearing is supported. Supported in this frame is a drive or engineshaft, which is composed of the two ooaxial portions 2 and 3. The poweror the engine piston, as the case may be, is applied to the end 3 of thesaiddrive-shaft, and this portion or part 3 of the drive or engine shafthas rigidly secured to it a gear-wheel 4:. The ad- 4 5 jacent end of thepart or portion 2 of the drive or engine shaft stops at the point 5(indicated by dotted lines) and is journaled in the adjacent end of thepart 3 or in flange or projcction 6 upon the gear f, which is providedwith a clutch member 20. Also journaled within the frame 1 is acounter-shaft '7, and

this counter-shaft 7 is provided with a gear 8, which is constantly inmesh or engagement with the gear 4 of the part 3 of the engine or driveshaft. Secured rigidly to the counter- I shaft 7 is a gear 8, and alsosecured rigidly to the counter-shaft 7 is a gear 9. A pinion 10 issuitably supported upon a stub-shaft or support 11 and is in constantengagement with the gear 9.

.Placed upon the part 2 of the engine or drive shaft is a gear 12, andthis gear 12 has a longitudinal movement upon the part- 2 of the saidengine or drive shaft, but is locked against rotation in respect to theshaft through the medium of a suitable rib or feather l l, which engagesa groove formed in the central opening of the gear-wheel 12, such asthat illustrated, for instance, at 15 in Fig. 1 and which is Wellunderstood by mechanics.

The gear 12 is provided at one side with a grooved collar 16, in thegroove of which engages an arm 17, the said arm 17 being carried by asliding rod 18. This sliding rod 18 will be operated by any suitableconnection (not here shown) within reach of the operator for the purposeof moving the gear 12 in a longitudinal direction back and forth uponthe part 2 of the engine or drive shaft and by means of which the throwin and out mechanism and the speed and reverse mechanisms arecontrolled, as will be fully explained hereinafter. The opposite side ofthe gear 12 is provided with a clutch member 19, adapted to engage acorresponding clutch member 20, carried by the gear 4:, which, as beforestated, is rigidly connected with the part 30f the engine or driveshaft. When the gear 12 is moved so as to throw its clutch member 19 inengagement with the clutch member 20, it

-will be readily understood that the part 2 of the engine or drive shaftwill be positively locked to the part 3 and will rotate in unisontherewith or at a corresponding speed. When, however, it is desired totransmit motion from the driving part 3 of the engine or drive shaftthrough the gears 8, 8, 9, 10, and 12 to the part 2 of the said shaftfor the purpose of either changing the relative speed of the part 2 ascompared with the part 3 or for the purpose of changing the direction ofrotation of the part 2 in respect to the part 3, the wheel or gear 12 ismoved in engagement, respectively, with either the gear 8 or the gear10. Vhen the gear 12 is moved in engagement with the gear 8', the part 2of the said engine or drive shaft will be rotated at a relatively lowerspeed than the part 3 through the intervention of the gear 4, 8, 8, and12. When the gear 12 is moved in engagement with the pinion 10, then thepart 2 of the engine or drive shaft will be revolved in a directionopthe part 3 of the teeth will tend to force the gears apart and theywill havea tendencyto slip, which causes generally a great clattering ofthe teeth and is very injurious to the parts and unsatisfactory.

By means of my improved gear I provide a clearance for the teeth of thegears in movtive engagement of the teeth, absolutely pre venting anytendency of the teeth to slip or any tendency to force the gearsidewise, and preventing absolutely the clattering and in- Thisimprovement consists in cutting away a part of every other tooth of thegear at that side of the teeth with which it is desired to engage thegear. If it is desired to have the gear engage from both sides ordirections, then the ends of every other tooth of the gear at both sidesthereof will be cut away, as shown specifically and clearly at a. and bin Figs. 1, 2, and 3. It will be understood, of course, that if a pairof gears are to operate only from one side then it will only benecessary to cut away a portion of every other tooth at one side of thegear for instance, as in the case of the pinion 10, Fig. 3since the gear12 is to operate only with one side of the pinion 10. hen every othertooth is partly cut away, as shown in Figs. 1, 2, and 3 and also asshown in the gears 12 and 8-, Fig. 3, the teeth are arranged in whatmight be aptly term ed a staggering relation. WVhen, however, the teethare cut away at only one side of the gear, as shown in the pinion ofFig. 3, then the teeth are simply shown in an overlapping relativearrangement.

As clearly illustrated in Figs. 2 and 3, when gears constructedaccording to my invention as just explained, the overlapping teeth ofone gear will pass between two overlapping te th of the ad acent gear,and which proserves to cause them to slide easily and noiselessly tomesh one with the other, as has been clearly demonstrated by theoperation of this invention in connection with motor-carriages. A gearof this construction is found to be of exceeding utility inmotorcarriages, where the gears are thrown into and out of mesh normalengagement, all of the teeth of each gear are in operation; are in theact of being thrown into gear for the space or period'of time necessaryto move the distance of the cut-away portions of the to clatter.

By cutting away the end of every other tooth, as here shown, I find inpractice that the gears will smoothly pass into and out of positivemesh.

Having thus described my invention, What claim, and desire to secure byLetters Patent, is

1. A gearing comprising two coacting rela tively laterally movablegears, the ends of.

cent teeth for the purpose described.

A gearing comprising two coacting relatively. laterally movablegears,-both gears at adjacent sides having the ends of every other toothadapted to overlap the adjacent ends of adjacent teeth, substantially asdescribed.

3. gearing comprising two coacting gears having a relative lateralmovement, each gear alternate teeth at adjacent sides cut away, wherebythe gears will smoothly slide into mesh by a lateral movement.

4. A gearing comprising two gears as 8 and 10, the ends of adjacentteeth of the gear 8 being cut away at opposite sides thereofsubstantially as shown, and the ends of alternate teeth of the gear 10cut away at the side ad- IIO jaeent the gear 8, and a third gear 12having In testimony whereof I have hereunto set opposite ends ofadjacent teeth cut away submy hand in the presence of two subscribingstantially as shown, the gears being relatively witnesses.

laterally movable, whereby the gear 12 can ALEXANDER WINTON. 5 be madeto engage the gear 8 from opposite Witnesses:

sides and the gear 10 at the side adjacent the GEO. H. BROWN,

gear 8. l F. W. FOX.

